“…Nevertheless, some generalizations are possible and are represented in Table 1. In most studies of either younger patients or patients of all ages, duodenal ulceration is the most common cause of significant bleeding, with gastric erosions, esophageal varices, gastric ulcers, esophagitis, and Mallory‐Weiss tears following behind in varying sequence 1 , 2 , 4 , 5 , 18 , 36–40 . On the other hand, in elderly patients gastric ulcer, duodenal ulcer, and gastric erosions tend toward equal frequency, with variable contribution from gastroesophageal varices, esophagitis‐ulceration, and Mallory‐Weiss tears 2 , 3 , 18 , 29 , 41 .…”